Lawn sweeper



March 31. 1925.

E. D. PARKER LAWN svinEPER Filed l-olrr 26. 1923 2 Sheets-Sheet l March31. 1925. 1,531,496

E. D. PARKER LAWN- SWEEPER 211,41? #6, 192:5 2 Sheets-Sheet 2 .IIQQ-Q,

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attozmma s Patented Nlar. 31, 1925. I 1,531,496 UNITED STATES I PATENTOFFICE.

nnwnv D. PARKER, or SPRINGFIELD, onro, AssreneR TO THE PARKER rA'rTERNvwoRKs COMPANY, or SPRINGFIELD, oHIo, A CORPORATION or OHIO.

LAWN SWEEPER.

Application filed February 26, 1923. Serial No. 621,208.

To all whom it may concern: and 2 and the forward side of this sweepingB it known th t I, EDWIN 1) PARKER, 2 element is enclosed by a sheetmetal casing iti f th U it d St t idi t 8 sultably secured to saidsupports. Each S i fi ld, i th County f Cl k d side support-has alaterally projecting hol- State of Ohio, have invented certain new lowSP1I1Cl1e9 Secured thereto y h bolt and useful Improvements in LawnSweepers, UPOTI Whlch spindles are journaled the exof which thefollowing is a specification.v nd d hubs 0f the. y g Wheels Thisinvention relates to improvements in p the X ended hub of each of thecarsweepers it more particularly relating to 'y g' Wheels 18 ]0'1111a1ed a'gear 11 having lawn sweepers xvhich co np -ige a. rotaryformed integrally therewith; Oll e IIM-JIIllJBPlQv 65 w i 1 t, an dlconveyor of a one-wayball clutch, the other member carrying thesweepings from the sweeping 13 0f Whleh 1S n g y. f m d Wi h theelement, and a box or receptacle for receiv- }b' of h y g Wheel e e ym in ing the, weepings from the conveyor be imparted to the gear 11 uponthe 5 A bj t, f th i ti i t id forward travel of the machine in a well70 an arrangement in which the parts are so kIlOWIl Way- Edch end of theshaft 7 of disposed and connected with each other as h ry Sw pingelement 7 has a pinion to lend the necessary flexibility to the struc-14 meshlng h the r p n ing gear 11 ture to enable it to adjust itself touneven SO'that up h fOTWaId travel of the matravel chlne rotary motionwill be imparted to the A further object of the inventionis to P idevise animplemen't of this character which Avremovable recep acle 15preferably of will be simple in'its construction, effective in Sheetmetal by frame consisting operation'and economical in manufacture. of apd ar, the side members of R f i t th d i wh chare represented by 16 andwhich are 3 Fig. 1 is a perspective view of an impleconnected togethernear the rear ends by t b d i th i nt a cross-bar 17 ,havlng its endsupturned as Fi 9, i a id l ti n f a ti f shown and connected with theside members the a Y 16, and also by a rectangular shaped frame Fig, 3is a iew of the pposite ide of a 18 having the lOWBl endsof its SidePOFtlOIlS portion of the implement from that shown dlrectly c0nnectedwith the members 16 and in Fig. 2' with one of the carrying wheels alsconnected therewith by braces 19.

and the gear casing removed a portion of The rear end of this frame ismounted the clutch mechanism being shown in upon a pair of caster heelsarranged at section. opposite sides thereof, one only of which is Fig.4: is a detail perspective view of one shown at 20. The forward end ofeach of of the rear supports for the conveyor frame. the side framemembers 16 of this frame Fig. 5 is a top plan view with the recepispivotally connected with the respective tacle and endless apron removed.main frame members 1 and 2 by bolts 21 40 6 is a section on the line 66of Fig. or other suitable fastening means at points 3 but showing inaddition in plan view a to the rear of the main carrying wheels.

portion of the lower apron roller and por- The conveyor frame consistsof a pair of trons of the frames for the endless apron side bars 22connected together near their and receptacle. upper ends by a cross-rod23 and having 45 I th d i 1 d 2 represent a i their lower endsperforated and journaled f castings whi h f r th id f th upon a shaft 21 which is journaled in rear main frame which are connected togethereXteIlSlOIlS 2 in egrally formed With the reby cross-rods 3 and 4 and lo b a f rspective side frame members. This shaft wardly extending yokemember 5 t th has connected therewith a roll shown in 50 central portionof which is swivelled a caster dotted line a 26 in Fig- 2, each end ofwheel 6 which acts as a gaug wh l, A which is provided with a rim 27 andabout sweeping element of well known form, the this roll and a secondroll 28 carried by the shaft 7 only of which is shown in the pre upperends of the side bars 22 passes an endent case, has its shaft journaledin bearings less apron 29 preferably provided with transcarried by theside supporting members 1 verse cleats 30. One end of the shaft 2a hassecured thereto a gear 31 which meshes with the gear 11 whereby rotarymotion is imparted to the roll 26 to impart travel to the apron. k

The upper ends of the side bars 22 are slidably supported from therectangular frame 18, the side members of this frame being provided withstrips 32 havingtheir upper ends bent inwardly as indicated at 33 toform shelves upon which the bars 22 rest.

From this construction it will be seen that an extremely flexiblestructure is provided which will permit either the main frame or thereceptacle frame to rise and fall independently of each other andindependently of the conveyor frame. \Vhen the caster wheel 6 of themain frame passes over an elevation or depression I in the ground themain frame members may tilt with the trunnions 9 acting as pivots, butinasmuch as the conveyor frame members 22 as well as the receptacleframe members 16 are pivotally connected with the main frame members,this tilting movement is permitted without strain upon the structureparts, the upper ends of the conveyor frame members 22 sliding upon thesup porting shelves 38 to compensate for such tilting movement. The sameis true when the rear caster wheels 20 ride over elevations ordepressions, thus raising or lowering the rearend of that frame. Thearrangement also permits of the ready assembly of the receptacle andconveyor frame members or permits the parts to be readily taken apartwhen desired.

Having thus described my invention, I claim:

11. In a sweeper of the character described, a main frame, carryingwheels therefor, a rotary sweeper element carried by said main frame, anoperating device for said sweeper 1 element carried by said main frameand operatively connected with said carrying wheels, a receptacle framepivotally connected at its forward end with said main frame, areceptacle carried by said receptacle frame, a conveyor frame pivotallyconnected with said main frame at its forward end and having its rearend supported by said receptacle frame, and a conveyor carried by saidconveyor frame.

2. In a sweeper of the character described, a main frame, side carryingwheels for said frame, a rotary sweeper element carried by said mainframe, a receptacle frame pivotally connected with said main frame, areceptacle supported by said receptacle frame, a wheeled support for therear end of said receptacle frame, a conveyor frame, a shaft carried bysaid main frame upon which the forward end of said conveyor frame ispivotallv mounted, a roll connected with said shaft, means for drivingsaid shaft from one of said side carrying wheels, an endless aproncarried by said conveyor frame and driven from said roll, and means forsupporting the rear end of said c0nveyor frame from said receptacleframe.

3. In a sweeper of the character described, a main frame, carryingwheels therefor, a rotary sweeper element carried by said main frame, anoperating device for said sweeper element carried by said main frame andoperatively connected with said carrying wheels, a receptacle framepivotally connected at its forward end with said main frame, areceptacle carried by said receptacle frame, a conveyor comprising upperand lower rolls and an endless apron passing about said rolls, saidupper roll being supported from said receptacle frame, said lower rollbeing rotatably mounted on said main frame and means for driving saidlower roll. 7 V In testimony whereof, I have hereunto set my hand this16th day of February, 1923.

EDWIN D. PARKER.

